HTTP error when trying to access RESTful web service from application

Question

Hi,
We are getting the following error when trying to access a RESTful web service coming from Apex workspace 4.2.1 and Apex listener 2.1:
ORA-29273: HTTP request failed ORA-06512: at "SYS.UTL_HTTP", line 1130 ORA-29024: Certificate validation failure
In the Debug report, besides the above I also see:
error_backtrace: ORA-06512: at "SYS.UTL_HTTP", line 1130 ORA-06512: at "APEX_040200.WWV_FLOW_WEB_SERVICES", line 543 ORA-06512: at "APEX_040200.WWV_FLOW_WEB_SERVICES", line 1164 ORA-06512: at "APEX_040200.WWV_FLOW_PROCESS", line 396
We get that error whether we use https or http in the URI pointing to the web service. When I test the Web Service in Workspace RESTful service GUI, I get the data back. When I go build an application with a report calling the RESTful Web Service I get that error. Both the Application and the Workspace RESTful services are on the same Apex environment and even the same workspace.
What is odd is that I can actually put the URL of the web service into a browser and I get the data: (using the demo hr data in sample RESTful services.)
IN browser-- https://weblogic-dev.edu/apex/ace/hr/empinfo/
yields:
7839,KING,PRESIDENT,,1981-11-17T05:00:00Z,5000,,10 7698,BLAKE,MANAGER,7839,1981-05-01T04:00:00Z,2850,,30 7782,CLARK,MANAGER,7839,1981-06-09T04:00:00Z,2450,,10 7566,JONES,MANAGER,7839,1981-04-02T05:00:00Z,2975,,20 7788,SCOTT,ANALYST,7566,1982-12-09T05:00:00Z,3000,,20 7902,FORD,ANALYST,7566,1981-12-03T05:00:00Z,3000,,20 7369,SMITH,CLERK,7902,1980-12-17T05:00:00Z,800,,20 7499,ALLEN,SALESMAN,7698,1981-02-20T05:00:00Z,1600,300,30 7521,WARD,SALESMAN,7698,1981-02-22T05:00:00Z,1250,500,30 7654,MARTIN,SALESMAN,7698,1981-09-28T04:00:00Z,1250,1400,30 7844,TURNER,SALESMAN,7698,1981-09-08T04:00:00Z,1500,0,30 7876,ADAMS,CLERK,7788,1983-01-12T05:00:00Z,1100,,20 7900,JAMES,CLERK,7698,1981-12-03T05:00:00Z,950,,30 7934,MILLER,CLERK,7782,1982-01-23T05:00:00Z,1300,,10
Any ideas on what would be causing the Error above in our application?
Thanks,
Pat
Edited by: patfmnd on Mar 11, 2013 3:25 PM
In reviewing the above error, I think we are realizing that we have to have the Weblogic layer SSL cert (actually the CERT from our BigIP load balancer which also does our SSL termination) imported into the Oracle server wallet where Apex is installed. Am I correct?
PM

Answer 1

We resolved our problem. The Apex Administrative Guide made us realize that we had to set up Wallet path in the Instance. This required working with DBAs to follow the Advanced networking guide to get the wallet set up on our server. We then added that path to the Instance configuration. (Manager Instance --> Instance settings). We ran into another other issue related to our implementation of CAS but were able to resolve that, and 'voila' were able to get the sample RESTful service consumed by our application!!
Now to the task of figuring out how to get Basic Auth working between client application and RESTful web service. If anyone has that working, let us know!!
It would be helpful if in the documentation of the Apex 2.x listener or Apex install/configuration there was clear reference to the above steps required for HTTPS access to RESTful web services.
Pat